ppc440ep Applied Micro Circuits Corporation (AMCC), ppc440ep Datasheet - Page 67

• Manufacturer Part Number: ppc440ep
• Description: Powerpc 440ep Embedded Processor
• Manufacturer: Applied Micro Circuits Corporation (AMCC)

Table 17. Clocking Specifications
Figure 5. Timing Waveform
AMCC Proprietary
440EP – PPC440EP Embedded Processor
SysClk Input
Note: Input slew rate
CPU Clock
MemClkOut and PLB Clock
PLL VCO
TrcClk
MAL Clock
Note: SysClk is a 2.5V/3.3V tolerant receiver. Slew rate should be measured between 0.7V and 1.7V.
Symbol
T
T
T
T
F
T
F
F
T
F
T
F
F
T
CS
CH
CL
CH
C
C
C
C
C
C
C
C
C
C
Frequency
Period
Edge stability (cycle-to-cycle jitter)
High time
Low time
Frequency
Frequency
Period
High time
Frequency
Period
Frequency
Frequency
Period
≥
1V/ns
Parameter
T
CH
T
C
40% of nominal period
40% of nominal period
45% of nominal period
CPU F
0.7496
33.33
Min
333
100
600
7.5
15
12
45
–
T
CL
C
/4
Revision 1.29 – May 07, 2008
60% of nominal period
60% of nominal period
55% of nominal period
Data Sheet
CPU F
133.33
66.66
±0.15
83.33
1334
Max
1.66
22.2
667
30
10
C
/4
1.7V (1.8 V)
1.25V (1.5V)
0.7V (0.8V)
Units
MHz
MHz
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
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